Saw-set.



UNITEDV `STATES Patented April 18, 1905.

OLAF E. LINDFORS, OF BEAVER, UTAH.

SAW-SET.

SPECIFICATION forming partei Letters Patent No. 787,519, dated April 18,1905.

Application tiled June l, 1904. Serial No. 210,730.

To all whom, it may concern:

Be it known that I, OLAri` E. LINDFoRs, a citizen of the UnitedStates,residing at Beaver, in the county of Beaver and State of Utah,have invented certain new and useful Improvements in Saw-Sets; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the saine, reference beinghad to theaccompanying drawings, and to the figures oi" reference marked thereon,which form a part of this specification.

This invention relates to improvements in saw-sets; and the main objectof the invention is to provide a saw-set by which saws may be set withaccuracy and much faster than by any of the old devices, which set onlyone tooth at a time, while my device makes a single stroke alongthesaw-blade and in so doing set all the teeth in a few seconds byrolling a notched wheel along each side of the teeth. This and otherobjects I attain by the novel construction and arrangement of partsillustrated in the accompanying drawings, in which- Figure 1 is a bottomview. Fig. 2 is a side view, and Fig. 3 a top view, of my saw-set. Fig.4 is an outer end view of one of the wheel-carrying frames supportedinside the main frame of the device. Fig. 5 is a side view-of the twosmall wheel-carrying frames. Fig. 6 is a bottom view of the frame at theleft in Fig. 5 with one of the wheel-operating levers in position. Fig.7 is a vertical central section through the wheel mechanism act-` ing atone side the saw-blade. Fig. 8 is a bottom view of one oi the steelwheels setting the saw-teeth. Fig. 9 is one of the smoothfaced wheelsrolling alonggthe saw-blade near the teeth to steady it while its teethare being set. Fig. 10 is an enlarged diametrical section through thesaw setting and saw stead ying or clamping wheels of the device inworking position upon the saw-blade.

Referring to the drawings by reference-numerals, 1 is the main Jframe orstock of the device. It is open in its middle portion and formed withtwo-handles 2, which the operator takes hold of in moving' the toolalong the saw-blade, and with lugs 3, between which the saw-blade isguided. The central space 4 of the stock is traversed longitudinally bytwo bars 5, upon which are slidingly supported two small frames 6, whichhave their upper corners 7 pivoted together at 8 in plane with themeshing gears 9, each of which is keyed at 10 (see Fig. 7) on a shaft11, journaled in the frame 6, and above said frame has a fixed collar12, (see Fig. 7,) and above the same fixed keys 13 and a screw-threadedupper end 14, upon which is placed a thumb-nut 15, that draws tightlytogether and against the collar l12 the smooth clamping-wheel 16 and thesawsetting steel wheel 17, both of which have keyways 18 for the keys13. The frames 6 are closed toward the sides of the saw by the twolevers 19, pivoted at 2O to the stock and having each a cam 21 engagingin a transverse groove 22 of the adjacent frame 6. (See Fig. 6.)

23 represents springs secured at 24 to the stock and acting on thelevers 19, so as to spread the frames 6 and their setting wheels or dies17 for ready insertion ot the saw, which in Figs. 2, 3, and 1G isindicated by the numeral 25.

As best shown in Fig. 10, the wheels 16 hold the blade 25 as tightly asnecessary and roll along it, while the teeth 26 of each rolling die orwheel 17 set the saw-teeth against the inclines 27 of the oppositewheel.

With each stock goes a series of pairs ot' die-wheels 17 so that insetting saws of iiner or coal-ser teeth a pair of die-wheels of therequired fineness of teeth is placed on the shafts 11; but the smoothclamping-wheels 16 remain always the samewone pair.

To set a saw more or less, the screws 28 are adjusted so that the endsof the levers 19 stop against them when more or less actuated againstthe springs 23 by the lingers of the hands holding the handles 2 andmoving the tool along the toothed edge of the saw-blade, or said screwsmay be placed like 28 in Fig. 1.

29 represents adjustment-screws, which may be used to regulate theforward position of the points of the saw-teeth between the setting-dies17. Said screws 29 may have their 100 points provided with acushion-plate, (not shown,) so that the end of the screw will not catchbetween the saw-teeth when they are large.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

l. Asaw-set having a main frame or stock with handles, a pair of smalleradjustable frames mounted in the main frame, a shaft journaled in eachof the small frames, a pair of intermeshing gear-wheels fixed one oneach shaft, and at the opposite ends of the shafts detachably-secureddie-wheels with teeth having inclined saw tooth engaging faces and withfaces between the teeth inclined oppositely to the incline of thedie-teeth so as to set a saw b v rolling along opposite sides of itsteeth, and means for adjusting said frames and die-wheels against eachother, said means consisting of pivoted spring-opened levers en g'agingthe small frames to close them together, said small levers or handlesbeing arranged one near each of the main handles, in position to begrasped b v the hands operating the latter.

2. A saw-set having a main frame or stock with handles, a pair ofsmaller adjustable frames mounted therein, a shaft journaled in each ofthe small frames, a pair ofintermeshing gear-wheels fixed one on eachshaft, and at'the opposite ends of the shafts detachablysecureddie-wheels with teeth having inclined lsaw-tooth-engaging faces and withfaces between the teeth inclined oppositely to the ineline of thedie-teeth so as to set a saw by rolling along opposite sides of itsteeth, and means for adjusting both of said frames and die-wheelsagainst each other, said means consisting of pivoted spring-openedlevers engaging the small frames to close them together, means forguiding the saw across the middle of the main frame, and means forinsuring the closing of the small frames at the middle of the mainframe.

3. A saw-set having a main frame or stock with handles, a pair ofsmaller adjustable frames mounted therein, a shaft journaled in each ofthe small frames, a pair of intermeshing gear-wheels fixed one on theend of each shaft, and at the opposite ends of the shaftsdetachably-secured die-wheels with teeth having inclined saw toothengaging faces and with faces between the teeth inclined oppositely tothe incline of the die-teeth so as to set a saw by rolling alongopposite sides of its teeth, and means for adjusting said frames anddie-wheels against each other, said frames being pivoted together in aplane with the meshing gears on a line tangential to the meshing-point.

V In testimony whereof I affix my signature in presence of twowitnesses.

OLAF E. LINDFORS.

Witnesses:

Jas. H. SKINNER, GEORGE MUNFORD.

